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60 lines
1.1 KiB
Go
60 lines
1.1 KiB
Go
package parser
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import "golox/token"
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type ExprVisitor[T any] interface {
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VisitErrorExpr(error *ErrorExpr) T
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VisitBinaryExpr(binary *BinaryExpr) T
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VisitGroupingExpr(grouping *GroupingExpr) T
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VisitLiteralExpr(literal *LiteralExpr) T
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VisitUnaryExpr(unary *UnaryExpr) T
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}
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type Expr interface {
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Accept(visitor ExprVisitor[any]) any
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}
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type ErrorExpr struct {
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Value string
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}
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func (t *ErrorExpr) Accept(visitor ExprVisitor[any]) any {
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return visitor.VisitErrorExpr(t)
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}
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type BinaryExpr struct {
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Left Expr
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Operator token.Token
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Right Expr
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}
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func (t *BinaryExpr) Accept(visitor ExprVisitor[any]) any {
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return visitor.VisitBinaryExpr(t)
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}
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type GroupingExpr struct {
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Expression Expr
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}
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func (t *GroupingExpr) Accept(visitor ExprVisitor[any]) any {
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return visitor.VisitGroupingExpr(t)
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}
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type LiteralExpr struct {
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Value any
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}
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func (t *LiteralExpr) Accept(visitor ExprVisitor[any]) any {
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return visitor.VisitLiteralExpr(t)
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}
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type UnaryExpr struct {
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Operator token.Token
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Right Expr
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}
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func (t *UnaryExpr) Accept(visitor ExprVisitor[any]) any {
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return visitor.VisitUnaryExpr(t)
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}
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